Telling a child not to get into a stranger's car is not victim blaming, is it?
How about advising a person to wear a mask in public to reduce their chance of getting sick?
Something as passive as what you wear should not be a trigger for crime in a reasonable city. Telling people they should dress for the fascists' peace of mind is not progress.
It's not about your beliefs or your imagination of what the world is or should be, it is about actual reality for these people.
Not that I'm saying dressing differently reduces risk mind you, I don't have statistics at hand to know whether it does or does not in western countries. I was commenting on the advice to avoid being a target on the street by hiding that you're a banker. That's not victim blaming.
But if women not "dressing scantily" as you say were to statistically reduce the chance of them being victimized in some situation, that seems like a pretty important thing for them to know. Or would you prefer that data was hidden from them?